CN104702978A - Video data locating method and network playing equipment - Google Patents

Video data locating method and network playing equipment Download PDF

Info

Publication number
CN104702978A
CN104702978A CN201510119152.8A CN201510119152A CN104702978A CN 104702978 A CN104702978 A CN 104702978A CN 201510119152 A CN201510119152 A CN 201510119152A CN 104702978 A CN104702978 A CN 104702978A
Authority
CN
China
Prior art keywords
video data
file
played
pcr
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510119152.8A
Other languages
Chinese (zh)
Other versions
CN104702978B (en
Inventor
王雄才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Broadband Multimedia Technology Co Ltd
Original Assignee
Hisense Broadband Multimedia Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Broadband Multimedia Technology Co Ltd filed Critical Hisense Broadband Multimedia Technology Co Ltd
Priority to CN201510119152.8A priority Critical patent/CN104702978B/en
Publication of CN104702978A publication Critical patent/CN104702978A/en
Application granted granted Critical
Publication of CN104702978B publication Critical patent/CN104702978B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242Synchronization processes, e.g. processing of PCR [Program Clock References]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845Structuring of content, e.g. decomposing content into time segments
    • H04N21/8456Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments

Abstract

The invention provides a video data locating method and network playing equipment, and relates to the communication field of a streaming media. The locating method is used for solving the problems that some TS (Test Set) document can be located only but cannot be located in the TS document when video data corresponding to a determined time point needs to be located in the VOD (Video on Demand) process, therefore the accuracy of the locating video data can be improved. The method comprises the steps of acquiring a locating time point of the video data; determining playing parameters of a transport stream TS document to be played, wherein the TS document to be played is a TS document corresponding to the locating time point of the video data and consists of at least two TS bags, and the playing parameters of the relevant parameters to the TS document to be played; determining a locating PCR (Photo-conductive Relay) value corresponding to the locating time point of the video data according to the playing parameters to the TS document to be played and the locating time point of the video data; and determining the locating TS bag according to the locating PCR value.

Description

A kind of method of video data location and netcast equipment
Technical field
The present invention relates to streaming media communication field, particularly relate to method and the netcast equipment of a kind of video data location.
Background technology
Along with the fast development of internet multimedia technology, in the network bandwidth ever-increasing today, Internet video accesses experience, diversified film source easily with it, real-time renewal speed attracted vast user, makes Internet video become user network and to live indispensable important component part.
In the prior art, exist and much adopt HLS (Http Live Streaming) as the video website of Streaming transfer protocol and netcast equipment.HLS protocol be Apple definition based on Http (HyperText Transfer Protocol, HTML (Hypertext Markup Language)) Streaming transfer protocol of protocol realization, continuous print media data is carried out segmentation by HLS protocol, be divided into multiple small documents to transmit, cater to the file transfer of web page server, a lightweight index file constantly updated is adopted to control download and the broadcasting of the little media file after splitting, the real-time Transmission of stream medium data can be realized, and in the program request of netcast equipment end.
By HLS protocol, video data is divided into media data TS (TransportStream, transport stream) file and media data index M3U8 file after treatment, and stores in the server.Wherein, TS file is wrapped by multiple TS and forms.The information such as URL (Uniform Resoure Locator, URL(uniform resource locator)) and time span thereof of each TS file is stored in M3U8 file.Netcast equipment, after obtaining M3U8 file, can be downloaded corresponding TS file according to URL wherein and play.
Netcast equipment can realize the program request of video data by said method.But user, when watching video, may run into the problem of location preview.Such as, when watching certain video, certain position that user may wish to jump to before or after current location is watched.Pass through said method, only can determine the TS file at the video data place that user needs the time point of redirect corresponding, can not determine that user needs the TS bag of video data correspondence in the TS file at its place that the time point of redirect is corresponding, be when can locate by said method the video data determined corresponding to time point, some TS files can only be navigated to, and can not in TS file inner position.
Summary of the invention
A kind of method that embodiments of the invention provide video data to locate and netcast equipment, carrying out in video request-program process in order to solve, during the video data needing location to determine corresponding to time point, some TS files can only be navigated to, and in the problem of TS file inner position, thus the accuracy of positioning video data can not be improved.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments provides the method for a kind of video data location, comprising: the play parameter determining transport stream TS file to be played; Described TS file to be played is the TS file corresponding with some positioning time of described video data, is wrapped form by least two TS; Described play parameter plays the relevant parameter of described TS file to be played; According to the play parameter of described TS file to be played and some positioning time of described video data, determine the location PCR value that some positioning time of described video data is corresponding; According to described location PCR value, determine location TS bag.
Second aspect, embodiments provides a kind of netcast equipment, comprising: acquiring unit, for obtaining some positioning time of video data; Determining unit, for determining the play parameter of transport stream TS file to be played; Described TS file to be played is the TS file corresponding with some positioning time of described video data, is wrapped form by least two TS; Described play parameter plays the relevant parameter of described TS file to be played; Described determining unit, also for according to the play parameter of described TS file to be played and some positioning time of described video data, determines the location PCR value that some positioning time of described video data is corresponding; Described determining unit, also for according to described location PCR value, determines location TS bag.
Embodiments provide method and the netcast equipment of a kind of video data location, netcast equipment obtains some positioning time of video data, determines the play parameter of TS file to be played; According to some positioning time of video data, the play parameter of TS file to be played, determines the location PCR value that some positioning time of video data is corresponding, and according to this location PCR value, determines location TS bag.Like this, relative to prior art, the present invention needs to carry out video redirect user, when F.F. or rewind, can by the time point of redirect, the time knots modification of F.F. or rewind sends to netcast equipment, the time point making netcast equipment can get user to need to jump to, the time point corresponding to time knots modification of F.F. or rewind, namely some positioning time of video data is obtained, and the play parameter of TS file to be played can be obtained, thus the location PCR value of some correspondence positioning time can be determined, and then PCR value can be located according to this, determine that corresponding location TS wraps.Determined location TS bag is the TS bag that user needs the video data of the position of redirect corresponding in the TS file at its place, thus solve and carrying out in video request-program process, during the video data needing location to determine corresponding to time point, some TS files can only be navigated to, and in the problem of TS file inner position, and then the accuracy of positioning video data can not be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the method for a kind of video data location that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the method for the another kind of video data location that Fig. 2 provides for the embodiment of the present invention;
The structural representation of a kind of netcast equipment that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide the method for a kind of video data location, as shown in Figure 1, comprising:
101, some positioning time of video data is obtained.
Concrete, user is when needing the video of adjustment viewing, the time point of the video playback adjusted can be needed to be sent to netcast equipment, and now netcast equipment can get some positioning time of video data, is the time point that user needs the video playback adjusted to.
Further, user is when being needed the time point of the video playback adjusted to be sent to netcast equipment, netcast equipment can be sent to by needing the video playback time point adjusted to, now, netcast equipment can using the video playback time point that receives some positioning time as video data.User also can be sent to netcast equipment by needing the time knots modification of adjustment, and now, netcast equipment according to this time knots modification, can determine some positioning time of video data.
Be, some positioning time obtaining video data comprises: receive the first positioning instruction, carry some positioning time of video data in the first positioning instruction.Or, receive the second positioning instruction.According to the reproduction time knots modification carried in the second positioning instruction, determine some positioning time of video data.
Wherein, reproduction time knots modification is carried in the second positioning instruction.Reproduction time knots modification refers to the interval time of the play time that the current play time of video data is corresponding with some positioning time of video data.
It should be noted that, the play time corresponding due to some positioning time of video data may before the current play time of video data, also may after the current play time of video data, so reproduction time knots modification comprises positive knots modification and negative knots modification.Positive knots modification can refer to that play time that some positioning time of video data is corresponding is after current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.Negative knots modification can refer to that play time that some positioning time of video data is corresponding is before current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.Such as, when user needs video fast forward, reproduction time knots modification is exactly positive knots modification.When user needs video rewind, reproduction time knots modification is exactly negative knots modification.
Certainly, the positive knots modification of reproduction time knots modification may also be play time corresponding to some positioning time that refers to video data before current play time, the current play time of video data puts the interval time of corresponding play time with the positioning time of video data, negative knots modification may also be play time corresponding to some positioning time that refers to video data after current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.The present invention does not limit this.
It should be noted that, the first positioning instruction is different from the second positioning instruction.First positioning instruction is to indicate the instruction that user needs the play time of the video data adjusted to, and such as the first positioning instruction is jump instruction etc.Second positioning instruction is to indicate the instruction of reproduction time knots modification that user needs the video data adjusted.Such as, the second positioning instruction is F.F. instruction or rewind instruction etc.
So, will the video data play be needed user, when directly adjusting to the position needing to play, the first positioning instruction can be sent to netcast equipment.Now carry some positioning time of video data in the first positioning instruction, be the play time carrying user and need the video data adjusted to.Now, netcast equipment can receive the first positioning instruction, gets some positioning time of the video data carried in the first positioning instruction by resolving the first positioning instruction.
Such as, user, when watching video A, ites is desirable to be adjusted to reproduction time a place, and now, user can send to netcast equipment the first positioning instruction that the play time carrying video A is reproduction time a.Now netcast equipment after receiving the first positioning instruction, can resolve this first positioning instruction, and the play time getting video A is and gets some positioning time that reproduction time a is video data.
When user needs the video data of broadcasting to be carried out quick or rewind viewing, user can send the second positioning instruction to netcast equipment.Subscriber equipment oneself can set its time knots modification needing displaying video, now, can carry reproduction time knots modification in the second positioning instruction.Netcast equipment is after receiving the second positioning instruction, this the second positioning instruction can be resolved, thus parse reproduction time knots modification, and then can according to this reproduction time knots modification, with the current play time of video data, determine some positioning time of video data.
It should be noted that, in the second positioning instruction, also can not carry reproduction time knots modification, now need to pre-set reproduction time knots modification.When netcast equipment receives the second positioning instruction, according to the reproduction time knots modification pre-set, some positioning time of video data can be determined.
Exemplary, user, when watching video A, wishes that F.F. is watched.Now user sends F.F. instruction to netcast equipment, is and sends the second positioning instruction to netcast equipment.Netcast equipment is when receiving F.F. instruction, if carry reproduction time knots modification in F.F. instruction, now netcast equipment can resolve this F.F. instruction, and gets reproduction time knots modification, thus according to this reproduction time knots modification, determine some positioning time.If do not carry reproduction time knots modification in F.F. instruction, now netcast equipment can get default reproduction time knots modification, thus according to this reproduction time knots modification, determines positioning straight contact.
102, the play parameter of transport stream TS file to be played is determined.
Wherein, TS to be played (Transport Stream, transport stream) file is the TS file corresponding with some positioning time of video data, is wrapped form by least two TS.Play parameter plays the relevant parameter of TS file to be played.
Concrete, netcast equipment, after putting the positioning time getting video data, can be resolved the TS file to be played putting corresponding video data positioning time including this video data, obtain the play parameter of this TS file to be played.
Further, the play parameter of TS file comprises: the playing duration of TS file to be played, the PCR value that PCR (Program Clock Reference, the program clock reference) value of the TS bag in TS file to be played and the 2nd TS wrap.
Wherein, a TS bag is that in TS file to be played, first TS with PCR mark wraps.2nd TS bag is the TS bag that in described TS file to be played, last has PCR mark.
Now, determine that the play parameter of transport stream TS file to be played comprises: the playing duration determining TS file to be played, the PCR value that the PCR value of the TS bag in TS file to be played and the 2nd TS wrap.
That is, netcast equipment get video data positioning time point after, after determining TS file to be played, can resolve this TS file acquisition to be played to the one TS bag and the 2nd TS wrap.The playing duration of TS file to be played can by resolving TS file acquisition to be played.Certainly, netcast equipment also can record TS file to be played each TS file the information such as URL (Uniform Resoure Locator, URL(uniform resource locator)) and time span thereof M3U8 file in obtain the playing duration of TS file to be played.Be, netcast equipment needs at M3U8 ff to the information recording TS file to be played, and from then on finds the playing duration of TS file to be played in information.
It should be noted that, in embodiments of the present invention, TS file to be played is wrapped by least two TS and forms, and at least two TS bags in TS file to be played, has at least one TS to wrap and has PCR mark.And in TS file to be played, at least one TS bag with PCR mark arranges according to the order of PCR value ascending order.
It should be noted that, TS bag is the packet of fixed byte, is 188 bytes.The header values of TS bag is 0x47, and can include PCR mark in TS bag.PCR mark is a kind of time mark, is 42bit (position) sampled value of base during encoder 27MHz.And the value of PCR mark is relevant with the scramble time of encoder, increases along with the increase of scramble time.So the value of the PCR mark in different TS bag is different.
Or the play parameter of TS file comprises: the PCR value of the TS bag in TS file to be played, the play start time of TS file to be played.
Now, determine that the play parameter of transport stream TS file to be played comprises: the PCR value determining the TS bag in TS file to be played, the play start time of TS file to be played.
That is, netcast equipment get video data positioning time point after, after determining TS file to be played, can resolve this TS file acquisition to be played in TS file to be played the one TS bag PCR value.Netcast equipment can by resolving the play start time of TS file acquisition to be played TS file to be played.Certainly, netcast equipment also can record TS file to be played each TS file the information such as URL and time span thereof M3U8 file in obtain the play start time of TS file to be played.Be, netcast equipment needs at M3U8 ff to the information recording TS file to be played, and from then on finds the play start time of TS file to be played in information.
It should be noted that, in embodiments of the present invention, a TS file is exactly HLS section of the prior art.In HLS protocol, video data can be divided into multiple section, play in units of cutting into slices.
103, according to the play parameter of TS file to be played and some positioning time of video data, the location PCR value that some positioning time of video data is corresponding is determined.
It should be noted that, the method putting corresponding location PCR value positioning time of netcast equipment determination video data can have multiple, and, the method putting corresponding location PCR value positioning time of netcast equipment determination video data is different, and the play parameter of the TS file to be played obtained in a step 102 can be different.Concrete is as follows:
Comprise in the play parameter of transport stream TS file to be played: the playing duration of TS file to be played, during the PCR value that the PCR value of the TS bag in TS file to be played and the 2nd TS wrap, according to the play parameter of TS file to be played and some positioning time of video data, determine that the location PCR value that some positioning time of video data is corresponding comprises:
According to some positioning time of video data, the playing duration of TS file to be played, the PCR value that the PCR value of a TS bag and the 2nd TS wrap, utilizes formula PCR s=((PCR 2-PCR 1) × T s)/T 0, determine the location PCR value that some positioning time of video data is corresponding.
Wherein, PCR srepresent location PCR value, PCR 2represent the PCR value of the 2nd TS bag, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of video data, T 0represent the playing duration of TS file to be played.
That is, netcast equipment is getting the playing duration of TS file to be played, after a TS bag and the 2nd TS wrap, and can according to utilizing formula (PCR 2-PCR 1)/T 0calculate the corresponding relation between the PCR of TS bag and the playing duration of TS file to be played, and then netcast equipment can according to some positioning time of video data, and above-mentioned corresponding relation determines the location PCR value that some positioning time of video data is corresponding.Be and pass through PCR s=((PCR 2-PCR 1) × T s)/T 0determine the location PCR value that some positioning time of video data is corresponding.
Or, comprise in the play parameter of TS file: the PCR value of the TS bag in TS file to be played, during the play start time of TS file to be played, according to the play parameter of TS file to be played and some positioning time of video data, determine that the location PCR value that some positioning time of video data is corresponding comprises:
According to the PCR value of the TS bag in TS file to be played, the play start time of TS file to be played and some positioning time of video data, utilize formula PCR s=PCR 1+ (T s-T 1)/(1/90000), determine the location PCR value that some positioning time of video data is corresponding.
Wherein, PCR srepresent location PCR value, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of described video data, T 1represent the play start time of TS file to be played, the count cycle of 1/90000 expression PCR.
That is, netcast equipment, can according to formula (T after the play start time of the PCR value and TS file to be played that get a TS bag s-T 1)/(1/90000) determine the point and the corresponding relation between TS count cycle of PCR of wrap positioning time of video data, thus can according to this corresponding relation, determine video data positioning time point correspondence location PCR value.Be and pass through PCR s=PCR 1+ (T s-T 1)/(1/90000), determine the location PCR value that some positioning time of video data is corresponding.
It should be noted that, netcast equipment can also use the location PCR value that some positioning time of additive method determination video data is corresponding, and the present invention does not limit this.
It should be noted that, netcast equipment can pre-set especially by the location PCR value that some positioning time of which kind of method determination video data is corresponding, like this, in a step 102 can according to the method putting corresponding location PCR value the positioning time of the video data of its setting, the play parameter of the TS file to be played needed for acquisition.
104, according to location PCR value, location TS bag is determined.
Concrete, netcast equipment is after determining location PCR value, can in TS file to be played, search the PCR value that each TS wraps, and then determine the TS bag that location PCR value is corresponding, be and determine location TS bag, and then the video data in this TS bag can be play, the video data that the position that realization broadcasting user will adjust to is corresponding.
Further, according to location PCR value, determine that location TS handbag is drawn together: according to location PCR value, utilize binary search, at least two TS bags that TS file to be played comprises, determine location TS bag.
That is, because TS bag sorts according to the order of PCR ascending order, so keyword when PCR value can be defined as TS file binary search to be played.Netcast equipment, after determining location PCR value, at least two TS bags that can comprise at TS file to be played, is determined i-th TS bag, and the PCR value of i-th TS bag and location PCR value is compared.If the PCR value of this i-th TS bag is close with location PCR value, then illustrate that i-th TS bag is location TS bag.If the PCR value of this i-th TS bag is not close with location PCR value, and be greater than location PCR value, then illustrate that location TS wraps in the side of the PCR value being less than i-th TS bag, now, can continue to find the 1st TS bag to wrap with the center TS of i-th TS parlor, be and find the i-th/2 or (i+1)/2 TS bag.And the PCR value of the i-th/2 or (i+1)/2 TS bag is compared, until the TS finding the PCR close with locating PCR value wraps with location PCR value.If the PCR value of this i-th TS bag is not close with location PCR value, and be less than location PCR value, then illustrate that location TS wraps in the side of the PCR value being greater than i-th TS bag, now, can continue to find the n-th TS bag to wrap with the center TS of i-th TS parlor, be and find (n+i)/2 or (n+i+1)/2 TS bag.And the PCR value of (n+i)/2 or (n+i+1)/2 TS bag TS bag is compared, until the TS finding the PCR value close with locating PCR value wraps with location PCR value.
Wherein, in TS file to be played, include n TS bag, n be greater than 0 integer.When n is odd number, the value of i is (n+1)/2.When n is even number, the value of i is n/2 or is n/2+1.
It should be noted that, the PCR value close with location PCR value refers to and the difference of locating between PCR value is less than the PCR value of the first preset value.If the PCR value of a kth TS bag is close with location PCR value, then illustrate that the difference between the PCR value of a kth TS bag and location PCR value is less than the first preset value, now can think, in the scope that error allows, the PCR value of a kth TS bag is equal with location PCR value.
It should be noted that, the first preset value pre-sets, and can set this value according to the requirement of required accuracy.
Like this, by binary search, fast location TS bag can be found out, and then save the time of location, improve the efficiency of the location of video data.
It should be noted that, the TS bag not having PCR to identify may be there is in the TS bag comprised in TS file to be played, when now searching TS bag by binary search, the TS bag of the TS bag that may find for not having PCR to identify, now can check whether its adjacent TS bag has PCR to identify, and when its adjacent TS is surrounded by PCR mark, the PCR value of the PCR mark contained by the TS handbag that location PCR value is adjacent compares.Further, when TS is surrounded by two adjacent TS bags, can check whether any one adjacent TS bag has PCR identify, and when this adjacent TS is surrounded by PCR mark, the PCR value that the PCR that TS handbag adjacent therewith for location PCR value contains identifies be compared.Or also can check whether two adjacent TS bag has PCR to identify, when all having PCR to identify in two adjacent TS wraps, the PCR value that the PCR that location PCR value and any one TS handbag wherein contain can be identified compares.Such as, when i-th TS bag does not have PCR to identify, can check that wrapping the i-th-1 adjacent TS wraps whether have PCR to identify with i-th TS, and when the i-th-1 TS is surrounded by PCR mark, the PCR value having PCR to identify that location PCR value and the i-th-1 TS handbag contain is compared.Or, checking whether the i-th+1 TS bag has PCR identify, and when the i-th+1 TS is surrounded by PCR mark, comparing locating the PCR value having PCR to identify that PCR value and the i-th+1 TS handbag contain.Or, check whether the i-th-1 TS bag and the i-th+1 TS bag have PCR to identify simultaneously.When the i-th-1 TS bag and the i-th+1 TS bag all have PCR identify, can by locate PCR value and the i-th-1 TS wraps or the i-th+1 TS wrap in the PCR value that identifies of the PCR that comprises compare.In the i-th-1 TS bag, have PCR to identify, and when not having PCR to identify in the i-th+1 TS bag, the PCR value that the PCR comprised in location PCR value and the i-th-1 TS can being wrapped identifies compare.In the i-th+1 TS bag, have PCR to identify, and when not having PCR to identify in the i-th-1 TS bag, the PCR value that the PCR comprised in location PCR value and the i-th+1 TS can being wrapped identifies compare.
Embodiments provide the method for a kind of video data location, netcast equipment obtains some positioning time of video data, determines the play parameter of TS file to be played; According to some positioning time of video data, the play parameter of TS file to be played, determines the location PCR value that some positioning time of video data is corresponding, and according to this location PCR value, determines location TS bag.Like this, relative to prior art, the present invention needs to carry out video redirect user, when F.F. or rewind, can by the time point of redirect, the time knots modification of F.F. or rewind sends to netcast equipment, the time point making netcast equipment can get user to need to jump to, the time point corresponding to time knots modification of F.F. or rewind, namely some positioning time of video data is obtained, and the play parameter of TS file to be played can be obtained, thus the location PCR value of some correspondence positioning time can be determined, and then PCR value can be located according to this, determine that corresponding location TS wraps.Determined location TS bag is the TS bag that user needs the video data of the position of redirect corresponding in the TS file at its place, thus solve and carrying out in video request-program process, during the video data needing location to determine corresponding to time point, some TS files can only be navigated to, and in the problem of TS file inner position, and then the accuracy of positioning video data can not be improved.
Embodiments provide the method for a kind of video data location, as shown in Figure 2, comprising:
201, some positioning time of video data is obtained.
Concrete, can refer step 101, do not repeat them here.
202, according to some positioning time of video data, TS file to be played is determined.
It should be noted that, the agreement that video data adopts according to server and netcast equipment is different, may be divided to multiple file.Such as, when server and netcast equipment adopt HLS protocol, server can according to HLS protocol by partitioning video data to multiple TS file.Therefore, netcast equipment needs first to determine that the positioning time of video data puts the TS file at corresponding video data place.
Concrete, netcast equipment getting the positioning time of video data after point, according to some positioning time of this video data, and the time span of each TS file, determine which TS file point positioning time of this video data is included in, be and determine TS file to be played.That is, user is had to need the video data navigated in the TS file that the positioning time comprising video data puts.
It should be noted that, server, after video data being divided into multiple TS file, can generating simultaneously include the title of each TS file and the description document M3U8 of time span.When netcast equipment needs playing video data, this description document M3U8 can be sent to netcast equipment, to make netcast equipment according to this description document M3U8, play each TS file.Like this, netcast equipment according to some positioning time of video data, can search this description document M3U8, determines the TS file to be played putting place the positioning time of video data.
It should be noted that, the embodiment of the present invention is that the scene of video data play by playback equipment Network Based, like this, in playing video data process, when user needs to adjust the position of playing video data, can need the bag of the TS in the TS file of the video data adjusted to position to containing user.
It should be noted that, if partitioning video data is not multiple TS files by the agreement adopted at server and netcast equipment, is video data all in same TS file, such as, have employed Http agreement, now without the need to performing step 202, directly step 203 can be performed.
203, the play parameter of TS file to be played is determined.
Concrete, can refer step 102, do not repeat them here.
204, according to the play parameter of TS file to be played and some positioning time of video data, the location PCR value that some positioning time of video data is corresponding is determined.
Concrete, can refer step 103, do not repeat them here.
205, according to location PCR value, location TS bag is determined.
Concrete, can refer step 104, do not repeat them here.
206, the video data in the TS bag of location is play.
Concrete, netcast equipment is after determining location TS bag, can resolve this TS bag, and then get the video data comprised in TS bag, and then the video data play in this TS bag, be netcast equipment from then on to locate TS bag place and start playing video data, thus realize being positioned to the position playing video data that user wants playing video data.
Exemplary, server and netcast equipment adopt HLS protocol transmitting video data.User watches video A in netcast equipment, and the position of viewing need be jumped to reproduction time 1 place by existing user.Now, user can send the first positioning instruction to netcast equipment, is jump instruction, and carries the viewing location that user needs redirect in the first positioning instruction, is and carries reproduction time 1.Now netcast equipment can receive the first positioning instruction, is jump instruction, and resolves this first positioning instruction, obtains in the first positioning instruction and carries reproduction time 1.Netcast equipment, after parsing reproduction time 1, inquires about according to this reproduction time 1 description document obtained in the server, determines the TS file of the video data including reproduction time 1 correspondence, is and determines TS file to be played.Netcast equipment, after determining TS file to be played, can be resolved this TS file to be played, obtain the play parameter of TS file to be played, such as, know the playing duration of this TS file to be played, and a TS bag and the 2nd TS wrap.Netcast equipment is according to the reproduction time 1 obtained, and the play parameter obtained, and is the playing duration of TS file to be played, and a TS bag and the 2nd TS wrap, and utilize formula PCR s=((PCR 2-PCR 1) × T s)/T 0, determine the location PCR value that some positioning time of video data is corresponding.Be the PCR that netcast equipment determines reproduction time 1 correspondence.After obtaining location PCR value, netcast equipment utilization analytic approach of reducing by half finds out the location TS corresponding with locating PCR value and wraps.The video data comprised in the TS bag of this location of netcast device plays, the video data realizing jumping to reproduction time 1 correspondence goes out.
It should be noted that, server and netcast equipment can also adopt other protocol transmission video data, such as HTTP, RTSP etc., and the present invention does not limit this.
Embodiments provide the method for a kind of video data location, netcast equipment obtains some positioning time of video data, determines the play parameter of TS file to be played; According to some positioning time of video data, the play parameter of TS file to be played, determines the location PCR value that some positioning time of video data is corresponding, and according to this location PCR value, determines location TS bag.Like this, relative to prior art, the present invention needs to carry out video redirect user, when F.F. or rewind, can by the time point of redirect, the time knots modification of F.F. or rewind sends to netcast equipment, the time point making netcast equipment can get user to need to jump to, the time point corresponding to time knots modification of F.F. or rewind, namely some positioning time of video data is obtained, and the play parameter of TS file to be played can be obtained, thus the location PCR value of some correspondence positioning time can be determined, and then PCR value can be located according to this, determine that corresponding location TS wraps.Determined location TS bag is the TS bag that user needs the video data of the position of redirect corresponding in the TS file at its place, thus solve and carrying out in video request-program process, during the video data needing location to determine corresponding to time point, some TS files can only be navigated to, and in the problem of TS file inner position, and then the accuracy of positioning video data can not be improved.
Embodiments provide a kind of netcast equipment, as shown in Figure 3, comprising:
Acquiring unit 301, for obtaining some positioning time of video data.
Concrete, acquiring unit 301, specifically for receiving the first positioning instruction.
Wherein, some positioning time of video data is carried in the first positioning instruction.
Or acquiring unit 301, specifically for receiving the second positioning instruction.According to the reproduction time knots modification carried in the second positioning instruction, determine some positioning time of video data.
Wherein, reproduction time knots modification is carried in the second positioning instruction.Reproduction time knots modification refers to the interval time of the play time that the current play time of video data is corresponding with some positioning time of video data.
It should be noted that, the play time corresponding due to some positioning time of video data may before the current play time of video data, also may after the current play time of video data, so reproduction time knots modification comprises positive knots modification and negative knots modification.Positive knots modification can refer to that play time that some positioning time of video data is corresponding is after current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.Negative knots modification can refer to that play time that some positioning time of video data is corresponding is before current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.Such as, when user needs video fast forward, reproduction time knots modification is exactly positive knots modification.When user needs video rewind, reproduction time knots modification is exactly negative knots modification.
Certainly, the positive knots modification of reproduction time knots modification may also be play time corresponding to some positioning time that refers to video data before current play time, the current play time of video data puts the interval time of corresponding play time with the positioning time of video data, negative knots modification may also be play time corresponding to some positioning time that refers to video data after current play time, and the current play time of video data puts the interval time of corresponding play time with the positioning time of video data.The present invention does not limit this.
It should be noted that, the first positioning instruction is different from the second positioning instruction.First positioning instruction is to indicate the instruction that user needs the play time of the video data adjusted to, and such as the first positioning instruction is jump instruction etc.Second positioning instruction is to indicate the instruction of reproduction time knots modification that user needs the video data adjusted.Such as, the second positioning instruction is F.F. instruction or rewind instruction etc.
It should be noted that, in the second positioning instruction, also can not carry reproduction time knots modification, now need to pre-set reproduction time knots modification.When netcast equipment receives the second positioning instruction, according to the reproduction time knots modification pre-set, some positioning time of video data can be determined.
Determining unit 302, for determining the play parameter of transport stream TS file to be played.
Wherein, TS file to be played is the TS file corresponding with some positioning time of described video data, is wrapped form by least two TS.Play parameter plays the relevant parameter of described TS file to be played.
Concrete, determining unit 302, specifically for determining the playing duration of transport stream TS file to be played, the PCR value that the program clock reference PCR value of the TS bag in TS file to be played and the 2nd TS wrap.
Wherein, a TS bag is that in TS file to be played, first TS with PCR mark wraps.2nd TS bag is the TS bag that in TS file to be played, last has PCR mark.
Now, the play parameter of TS file comprises: the playing duration of TS file to be played, the PCR value that the PCR value of the TS bag in TS file to be played and the 2nd TS wrap.
It should be noted that, in embodiments of the present invention, TS file to be played refers to the file of the video data containing some correspondence positioning time.And TS file to be played by least two each and every one TS wrap form, and in TS file to be played at least two each and every one TS wrap in, have at least one TS wrap have PCR mark.And in TS file to be played, at least one TS bag with PCR mark arranges according to the order of PCR ascending order.
It should be noted that, TS bag is the packet of fixed byte, is 188 bytes.The header values of TS bag is 0x47, and can include PCR mark in TS bag.PCR mark is a kind of time mark, is 42bit (position) sampled value of base during encoder 27MHz.And the value of PCR mark is relevant with the scramble time of encoder, increases along with the increase of scramble time.So the PCR mark in different TS bag is different.
Or determining unit 302, specifically for determining the PCR value of the TS bag in TS file to be played, the play start time of TS file to be played.
Now, the play parameter of TS file comprises: the PCR value of the TS bag in TS file to be played, the play start time of TS file to be played.
Determining unit 302, also for according to the play parameter of TS file to be played and some positioning time of video data, determines the location PCR value that some positioning time of video data is corresponding.
Concrete, comprise in the play parameter of TS file: the playing duration of TS file to be played, during the PCR value that the PCR value of the TS bag in TS file to be played and the 2nd TS wrap, determining unit 302, specifically for some positioning time according to video data, the playing duration of TS file to be played, the PCR value that the PCR value of a TS bag and the 2nd TS wrap, utilizes formula PCR s=((PCR 2-PCR 1) × T s)/T 0, determine the location PCR value that some positioning time of video data is corresponding.
Wherein, PCR srepresent location PCR value, PCR 2represent the PCR value of the 2nd TS bag, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of video data, T 0represent the playing duration of TS file to be played.
Or, comprise in the play parameter of TS file: the PCR value of the TS bag in TS file to be played, during the play start time of TS file to be played, determining unit 302, specifically for the PCR value according to the TS bag in TS file to be played, the play start time of TS file to be played and some positioning time of video data, utilize formula PCR s=PCR 1+ (T s-T 1)/(1/90000), determine the location PCR value that some positioning time of video data is corresponding.
Wherein, PCR srepresent location PCR value, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of video data, T 1represent the play start time of TS file to be played; The count cycle of 1/90000 expression PCR.
Determining unit 302, also for according to location PCR value, determines location TS bag.
Concrete, determining unit 302, specifically for according to location PCR value, utilizes binary search, at least two TS bags that TS file to be played comprises, determine location TS bag.
Further, determining unit 302, also for some positioning time according to video data, determines the to be played TS file corresponding with some positioning time.
Embodiments provide a kind of netcast equipment, netcast equipment obtains some positioning time of video data, determines the play parameter of TS file to be played; According to some positioning time of video data, the play parameter of TS file to be played, determines the location PCR value that some positioning time of video data is corresponding, and according to this location PCR value, determines location TS bag.Like this, relative to prior art, the present invention needs to carry out video redirect user, when F.F. or rewind, can by the time point of redirect, the time knots modification of F.F. or rewind sends to netcast equipment, the time point making netcast equipment can get user to need to jump to, the time point corresponding to time knots modification of F.F. or rewind, namely some positioning time of video data is obtained, and the play parameter of TS file to be played can be obtained, thus the location PCR value of some correspondence positioning time can be determined, and then PCR value can be located according to this, determine that corresponding location TS wraps.Determined location TS bag is the TS bag that user needs the video data of the position of redirect corresponding in the TS file at its place, thus solve and carrying out in video request-program process, during the video data needing location to determine corresponding to time point, some TS files can only be navigated to, and in the problem of TS file inner position, and then the accuracy of positioning video data can not be improved.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit comprises, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a method for video data location, is characterized in that, comprising:
Obtain some positioning time of video data;
Determine the play parameter of transport stream TS file to be played; Described TS file to be played is the TS file corresponding with some positioning time of described video data, is wrapped form by least two TS; Described play parameter plays the relevant parameter of described TS file to be played;
According to the play parameter of described TS file to be played and some positioning time of described video data, determine the location PCR value that some positioning time of described video data is corresponding;
According to described location PCR value, determine location TS bag.
2. method according to claim 1, is characterized in that, describedly determines that the play parameter of transport stream TS file to be played comprises:
Determine the playing duration of described TS file to be played, the PCR value that the program clock reference PCR value of the TS bag in described TS file to be played and the 2nd TS wrap; A described TS bag is that in described TS file to be played, first TS with PCR mark wraps; Described 2nd TS bag is the TS bag that in described TS file to be played, last has PCR mark;
Described according to the play parameter of described TS file to be played and some positioning time of described video data, determine that the location PCR value that some positioning time of described video data is corresponding comprises:
According to some positioning time of described video data, the playing duration of described TS file to be played, the PCR value that the PCR value of a described TS bag and the 2nd TS wrap, utilizes formula PCR s=((PCR 2) PCR 1) × T s)/T 0, determine the location PCR value that some positioning time of described video data is corresponding; Wherein, PCR srepresent location PCR value, PCR 2represent the PCR value of the 2nd TS bag, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of described video data, T 0represent the playing duration of described TS file to be played.
3. method according to claim 1, is characterized in that, describedly determines that the play parameter of transport stream TS file to be played comprises:
Determine the PCR value of the TS bag in described TS file to be played, the play start time of described TS file to be played;
Described according to the play parameter of described TS file to be played and some positioning time of described video data, determine that the location PCR value that some positioning time of described video data is corresponding comprises:
According to the PCR value of the TS bag in described TS file to be played, the play start time of described TS file to be played and some positioning time of described video data, utilize formula PCR s=PCR 1+ (T s) T 1)/(1/90000), determine the location PCR value that some positioning time of described video data is corresponding; Wherein, PCR srepresent location PCR value, PCR 1represent the PCR value of a TS bag, T srepresent some positioning time of described video data, T 1represent the play start time of described TS file to be played; The count cycle of 1/90000 expression PCR.
4. according to claim 1) method described in 3 any one, it is characterized in that, described determine the play parameter of transport stream TS file to be played before, also comprise:
According to some positioning time of described video data, determine to put corresponding TS file to be played with described positioning time.
5. method according to claim 4, is characterized in that, some positioning time of described acquisition video data comprises:
Receive the first positioning instruction, in described first positioning instruction, carry some positioning time of described video data;
Or,
Receive the second positioning instruction; Reproduction time knots modification is carried in described second positioning instruction; Described reproduction time knots modification refers to the interval time of the play time that the current play time of described video data is corresponding with some positioning time of video data;
According to the reproduction time knots modification that described second positioning instruction carries, determine some positioning time of described video data.
6. a netcast equipment, is characterized in that, comprising:
Acquiring unit, for obtaining some positioning time of video data;
Determining unit, for determining the play parameter of transport stream TS file to be played; Described TS file to be played is the TS file corresponding with some positioning time of described video data, is wrapped form by least two TS; Described play parameter plays the relevant parameter of described TS file to be played;
Described determining unit, also for according to the play parameter of described TS file to be played and some positioning time of described video data, determines the location PCR value that some positioning time of described video data is corresponding;
Described determining unit, also for according to described location PCR value, determines location TS bag.
7. netcast equipment according to claim 6, is characterized in that,
Described determining unit, specifically for determining the playing duration of described TS file to be played, the PCR value that the program clock reference PCR value of the TS bag in described TS file to be played and the 2nd TS wrap; A described TS bag is that in described TS file to be played, first TS with PCR mark wraps; Described 2nd TS bag is the TS bag that in described TS file to be played, last has PCR mark;
According to some positioning time of described video data, the playing duration of described TS file to be played, the PCR value that the PCR value of a described TS bag and the 2nd TS wrap, utilizes formula PCR s=((PCR 2) PCR 1) × T s)/T 0, determine the location PCR value that some positioning time of described video data is corresponding; Wherein, PCR srepresent described location PCR value, PCR 2represent the PCR value of described 2nd TS bag, PCR 1represent the PCR value of a described TS bag, T srepresent some positioning time of described video data, T 0represent the playing duration of described TS file to be played.
8. netcast equipment according to claim 6, is characterized in that,
Described determining unit, specifically for determining the PCR value of the TS bag in described TS file to be played, the play start time of described TS file to be played;
According to the PCR value of the TS bag in described TS file to be played, the play start time of described TS file to be played and some positioning time of described video data, utilize formula PCR s=PCR 1+ (T s) T 1)/(1/90000), determine the location PCR value that some positioning time of described video data is corresponding; Wherein, PCR srepresent described location PCR value, PCR 1represent the PCR value of a described TS bag, T srepresent some positioning time of described video data, T 1represent the play start time of described TS file to be played; The count cycle of 1/90000 expression PCR.
9. according to claim 6) netcast equipment described in 8 any one, it is characterized in that,
Described determining unit, also for some positioning time according to described video data, determines to put corresponding TS file to be played with described positioning time.
10. netcast equipment according to claim 9, is characterized in that,
Described acquiring unit, specifically for receiving the first positioning instruction, carries some positioning time of described video data in described first positioning instruction;
Or,
Receive the second positioning instruction; Reproduction time knots modification is carried in described second positioning instruction; Described reproduction time knots modification refers to the interval time of the play time that the current play time of described video data is corresponding with some positioning time of video data;
According to the reproduction time knots modification carried in described second positioning instruction, determine some positioning time of described video data.
CN201510119152.8A 2015-03-18 2015-03-18 A kind of method and netcast equipment of video data positioning Active CN104702978B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510119152.8A CN104702978B (en) 2015-03-18 2015-03-18 A kind of method and netcast equipment of video data positioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510119152.8A CN104702978B (en) 2015-03-18 2015-03-18 A kind of method and netcast equipment of video data positioning

Publications (2)

Publication Number Publication Date
CN104702978A true CN104702978A (en) 2015-06-10
CN104702978B CN104702978B (en) 2018-11-02

Family

ID=53349688

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510119152.8A Active CN104702978B (en) 2015-03-18 2015-03-18 A kind of method and netcast equipment of video data positioning

Country Status (1)

Country Link
CN (1) CN104702978B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105049904A (en) * 2015-07-27 2015-11-11 青岛海信移动通信技术股份有限公司 Play method and play device of multi-media files
CN105979350A (en) * 2016-05-05 2016-09-28 联发科技(新加坡)私人有限公司 Method for searching playing position of playing file and corresponding apparatus
WO2017012440A1 (en) * 2015-07-21 2017-01-26 腾讯科技(深圳)有限公司 Audio/video jump-playing method and apparatus
CN109120989A (en) * 2018-10-08 2019-01-01 四川长虹电器股份有限公司 The method of retrospect positioning when TS stream broadcasting
CN110730358A (en) * 2018-07-16 2020-01-24 深圳Tcl新技术有限公司 Live video time shifting control method, terminal and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101202900A (en) * 2007-03-12 2008-06-18 深圳市同洲电子股份有限公司 Method for switching living broadcast and playback of digital television and video server
CN102065320A (en) * 2009-11-12 2011-05-18 三星电子(中国)研发中心 Method and equipment for processing trick playing command related to transport stream (TS) code stream
CN102231826A (en) * 2011-03-14 2011-11-02 新奥特(北京)视频技术有限公司 Indexing method and system supporting frame accurate positioning of transport stream media file
CN103152607A (en) * 2013-01-10 2013-06-12 上海思华科技股份有限公司 Video superfast rough editing method
CN104159161A (en) * 2014-08-25 2014-11-19 广东欧珀移动通信有限公司 Video image frame location method and device
CN104216959A (en) * 2014-08-21 2014-12-17 浙江宇视科技有限公司 TS (transport stream) file positioning method and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101202900A (en) * 2007-03-12 2008-06-18 深圳市同洲电子股份有限公司 Method for switching living broadcast and playback of digital television and video server
CN102065320A (en) * 2009-11-12 2011-05-18 三星电子(中国)研发中心 Method and equipment for processing trick playing command related to transport stream (TS) code stream
CN102231826A (en) * 2011-03-14 2011-11-02 新奥特(北京)视频技术有限公司 Indexing method and system supporting frame accurate positioning of transport stream media file
CN103152607A (en) * 2013-01-10 2013-06-12 上海思华科技股份有限公司 Video superfast rough editing method
CN104216959A (en) * 2014-08-21 2014-12-17 浙江宇视科技有限公司 TS (transport stream) file positioning method and device
CN104159161A (en) * 2014-08-25 2014-11-19 广东欧珀移动通信有限公司 Video image frame location method and device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017012440A1 (en) * 2015-07-21 2017-01-26 腾讯科技(深圳)有限公司 Audio/video jump-playing method and apparatus
CN105049904A (en) * 2015-07-27 2015-11-11 青岛海信移动通信技术股份有限公司 Play method and play device of multi-media files
CN105049904B (en) * 2015-07-27 2019-05-31 青岛海信移动通信技术股份有限公司 A kind of playing method and device of multimedia file
CN105979350A (en) * 2016-05-05 2016-09-28 联发科技(新加坡)私人有限公司 Method for searching playing position of playing file and corresponding apparatus
CN105979350B (en) * 2016-05-05 2019-03-08 联发科技(新加坡)私人有限公司 A kind of method and related device of play position that searching for played file
CN110730358A (en) * 2018-07-16 2020-01-24 深圳Tcl新技术有限公司 Live video time shifting control method, terminal and storage medium
CN110730358B (en) * 2018-07-16 2022-05-06 深圳Tcl新技术有限公司 Live video time shifting control method, terminal and storage medium
CN109120989A (en) * 2018-10-08 2019-01-01 四川长虹电器股份有限公司 The method of retrospect positioning when TS stream broadcasting
CN109120989B (en) * 2018-10-08 2021-06-29 四川长虹电器股份有限公司 Method for tracing and positioning during TS stream playing

Also Published As

Publication number Publication date
CN104702978B (en) 2018-11-02

Similar Documents

Publication Publication Date Title
US10820063B2 (en) Manifest customization in adaptive bitrate streaming
US20190230313A1 (en) System and method for modifying media streams using metadata
CN106464945B (en) Method, system and the computer-readable medium of enhanced stream media playback
US9426543B1 (en) Server-based video stitching
USRE48360E1 (en) Method and apparatus for providing trick play service
CN104702978A (en) Video data locating method and network playing equipment
EP2490445B1 (en) Method, terminal and server for implementing trickplay
US10015222B2 (en) Systems and methods for selective retrieval of adaptive bitrate streaming media
WO2015035942A1 (en) Method for playing back live video and device
CN103826159B (en) The local offline player method and terminal of a kind of M3U8 format videos
EP2991341A1 (en) Video playback method, media device, playback device, and multimedia system
CN103686455A (en) Video playing method and device based on HLS protocol
CN103929427A (en) Dynamic multi-thread downloading device and method
KR101317028B1 (en) A method of switching media content for a mobile apparatus
US20160134900A1 (en) Streaming media processing method, apparatus, and system
CN106658226B (en) Playing method and device
KR20160002981A (en) Media quality information signaling in dynamic adaptive video streaming over hypertext transfer protocol
CN105828096B (en) Method and device for processing media stream file
KR20110053179A (en) Method and apparatus for transmitting and receiving of data
CN103763637A (en) Stream media broadcasting method and system
CN104410901A (en) Play method and play device of M3U8 format live stream
US20210273986A1 (en) Client, live-streaming server and data stream using an information on a current segment of a sequence of segments
CN105812847A (en) HLS video live broadcast method, server and system
CN108174284B (en) Android system-based video decoding method
US10708336B2 (en) System and method for announcing media changes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant